From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph showing governor lag against quadrant notches for chassis 8EX with a standard carburettor.
| Identifier | ExFiles\Box 66a\3\ scan0104 | |
| Date | 27th October 1926 guessed | |
| GOVERNOR LAG CHASSIS 8EX. STANDARD CARBURETTER BALL BEARINGS IN GOVERNOR TO SCHEME 820 (FIG II) ENGINE R.P.M. NOTCHES ON QUADRANT. DOWN UP FIG IV 1250 1000 750 500 250 0 5 10 15 20 25 30 | ||